#[cfg(test)]
mod tests {
    use super::*;
    #[test]
    fn test_define() {
        
        let max = unsafe { rust_test_zstd() } as i32;

        assert!(max == ZSTD_WINDOWLOG_MAX_32 || max == ZSTD_WINDOWLOG_MAX_64);

        let ret = unsafe { rust_stmt_expr_inc() };

        assert_eq!(ret, 2);
    }
}